Swan, Michael <br/><br/>
Practical English usage 

 -  3rd ed. 
 - Oxford    New York 
<br/><br/><label>ISBN: </label>978-0-19-442099-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/> English language�Grammar�Study and teaching<br/> Readers<br/>English Language<br/>English language�Business English
<br/><br/><label>LC Class. No.: </label>PE1106.S94